CN1853324A

CN1853324A - Cable trough device

Info

Publication number: CN1853324A
Application number: CNA2004800270236A
Authority: CN
Inventors: 古川裕; 岸则男
Original assignee: Furukawa Electric Co Ltd
Current assignee: Furukawa Electric Co Ltd
Priority date: 2003-09-19
Filing date: 2004-09-15
Publication date: 2006-10-25
Anticipated expiration: 2024-09-15
Also published as: WO2005029664A1; CN1853324B; KR101077903B1; KR20060088109A; JP4190994B2; JP2005094958A

Abstract

A cable trough device comprises a cable trough (2) having a trough body (4) and a lid (6), and a fixing mechanism for fixing the lid (6) to the trough body (4). The fixing mechanism includes a rib (12) projecting from the side wall (8) of the trough body (4), a U-shaped groove (14) formed in the upper surface of the lid (6), and a lid clamper (16) extending between the rib (12) and the U-shaped groove (14). The lid clamper (16) has a clip (18) attached to the rib (12), and a hook (28) extending from the clip (18) and adapted to fit in the U-shaped groove (14).

Description

Cable trough device

Technical field

The present invention relates to be used in the cable trough device of laying of the cable class of telecommunication cable or power cable etc.

Background technology

By the circuit of railway, under the situation of this track laying cable class, usually, the cable class is contained in the conduit, and this kind conduit is constructed a plurality of cable troughs with being arranged as row.

Each cable trough include two ends and upper surface respectively opening cell body, with the lid of the upper surface open of inaccessible this cell body, 2 cable troughs of adjacency are the state that cell body is mutual binding.

Usually, this kind cable trough and cell body and lid form by concrete.But its Heavy Weight of the cable trough of concrete system is not easy so the laying of cable class is constructing of conduit.

Therefore, the cell body of the disclosed cable trough of TOHKEMY 2000-55240 communique and lid form by plastics.If use so plastic cable trough, then conduit constructs easily.

But it is in light weight for plastic lid, so when being subjected to the external force of wind etc., lid comes off from cell body easily.Therefore, the cable trough of described communique, its cell body can mutually combine with lid.

In more detail, each sidewall of cell body surface thereon forms the track projection, and these track projections are to extend on the axis direction of cable trough at the length direction of sidewall.On the other hand, the both side edges of lid forms rail groove respectively at its lower surface, and these rail grooves also extend on the length direction that the axis direction of cable trough promptly covers.These track projections and rail groove can be meshing with each other, and this engagement is allowed lid along the slip on the axis direction of cable trough, but stop lid lifting from the cell body.Thereby, if cable trough has above-mentioned track projection and rail groove, then stop lid coming off from the cell body reliably.

Above-mentioned track projection and rail groove are mold formed with cell body and lid respectively, but the forming accuracy of in these track projections and rail groove mold formed, having relatively high expectations.Under the situation of the forming accuracy deficiency of these track projections and rail groove, just can not carry out the embedding of track projection in rail groove is the relative insertion of track projection with respect to rail groove, thus perhaps the track projection in rail groove, produce rock can not with the lid stably be installed on the cell body.

On the other hand,, can make the one-sided slip of lid, cover installation on cell body with this from cell body for the track projection that makes cell body is received in the rail groove of the correspondence of lid.Therefore, in case be built into after the conduit, just the lid arbitrarily in the conduit can not be unloaded from its cell body by a plurality of cable troughs.

Summary of the invention

The object of the present invention is to provide a kind of cable trough device, its lid can not come off from cell body, can again, even after described conduit is built into, can easily take the lid arbitrarily in the conduit with respect to cell body mounting cover reliably and easily yet.

In order to reach above-mentioned purpose, the invention provides a kind of cable trough device, it comprise constitute by plastics and include have diapire and about sidewall and at two ends and the cable trough of the lid of the upper surface open of the cell body of upper surface open and inaccessible cell body, with the fixed mechanism that fixes lid with respect to cell body; This fixed mechanism include at least 1 projection on one in the sidewall that is formed at cell body and the lid, with another person who is arranged at sidewall and lid at least 1 fastener, and across also covering the lid clamper that can be fixed on the cell body between projection and the fastener with discharging.

Because the lid clamper is different parts with cable trough, so the lid clamper does not make the shaping complexity of cable trough.

After discharge utilizing the fixing of the lid that cover clamper and carry out, lid can easily unload from cell body.Therefore, the conduit that promptly is used in the cable laying class is constructed by a plurality of cable trough devices, also can open cable trough arbitrarily.

Particularly, the lid clamper includes the clamping device that can sandwich projection, remains on the clamping device with a side and the opposing party can hook and is fixed in hook on the fastener.Be preferably, projection is the rib that is formed on the sidewall of cell body, and this rib extends on the axis direction of cell body.

Above-mentioned clamping device is made of the leaf spring of U word shape, and include base portion, with a pair of arm that extends and can clamp rib from this base portion, with at least 1 carrier of base end part that can receive hook; Carrier has the two ends of opening.

Under this situation, clamping device can also include the bare terminal end that the leading section bending of each arm is formed, and the front end that the interval of these bare terminal ends is preferably towards clamping device increases gradually.

And then, hook can include its base portion can be installed on a pair of pin in the carrier of clamping device rotatably, have on the front end that is attached to a pair of pin respectively two ends and with the gib head of the upwardly extending U font in the side of a pair of pin quadrature, under this situation, fastener includes the groove on the upper surface that is formed on lid, and this groove constitutes the U word shape that can embed gib head.

On the other hand, hook can include the gib head that its both ends move up and down the U font in the carrier that is installed on clamping device freely, and under this situation, fastener includes from the outstanding L letter stencil in the side of lid, the side interlock of this L letter stencil and lid, formation can be taken in the groove of gib head.

Because no matter above-mentioned lid clamper is all formed by clamping device and these 2 parts of hook, so provide easily.

Description of drawings

Fig. 1 is the stereogram of a part of the cable trough of expression first embodiment;

Fig. 2 is the stereogram of the lid clamper of expression first embodiment;

Fig. 3 is the stereogram of a part of the cable trough device of the lid clamper of expression with Fig. 2;

Fig. 4 is the end view of the clamping device of expression first variation;

Fig. 5 is the end view of the clamping device of expression second variation;

Fig. 6 is the end view of the clamping device of expression the 3rd variation;

Fig. 7 is the end view of the clamping device of expression the 4th variation;

Fig. 8 is the end view of the clamping device of expression the 5th variation;

Fig. 9 is the stereogram of a part of the cable trough device of expression second embodiment;

Figure 10 is the end view of clamping device of the lid clamper of presentation graphs 9.

Embodiment

The cable trough device of first embodiment has cable trough 2 as shown in Figure 1, and this cable trough 2 includes cell body 4 and covers 6.These cell bodies 4 and cover 6 and for example utilize injection molding forming and formed by plastics are preferably by utilizing plastics to form again.

Just can know that from Fig. 1 cell body 4 has the roughly cross section of U word shape, sidewall 8 and diapire 10 about including.Thereby cell body 4 is at its two ends and upper surface opening respectively.

On the other hand, lid 6 constitute stride be located at cell body 4 about 8 of sidewalls tabular, and have the width identical with the width of cell body 4.When mounting is on these sidewalls 8, the upper surface open of inaccessible cell body 4.At this moment, as shown in Figure 1, the two sides of lid 6 and two outside wall surface of cell body 4 become with one side.

And then in lid 6 mountings on cell body 4 time, the cable trough device of first embodiment has also that be used for will lid 6 fixed mechanisms that are fixed on the cell body 4.

At first, fixed mechanism includes rib 12 respectively on the sidewall about cell body 48, and these ribs 12 outside wall surface from corresponding side walls 8 respectively are outstanding integratedly.In more detail, each rib 12 is positioned the top of outside wall surface, and extends along the axis direction of cell body 4.On the other hand, the surperficial thereon both side edges of lid 6 includes a plurality of U word grooves 14 respectively.Each U word groove 14 landscape configuration, and have the two ends of opening at lid 6 lateral margin.

Fixed mechanism also includes a plurality of lid clampers 16 as shown in Figure 2.Lid clamper 16 has clamping device 18, and this clamping device 18 can sandwich the rib 12 of described cell body 4.In more detail, clamping device 18 to be to be U font roughly with leaf spring bending, further the both ends of leaf spring bent afterwards in the mode of the inboard of described U font to form.Thereby, roughly the clamping device 18 of U word shape have base portion 20, from this base portion 20 extend and mutually opposed a pair of arm 22, with the leading section that is formed at these arms 22 on the bare terminal end 24 of triangle.The distance that these bare terminal ends are 24 little by little enlarges towards the front end of clamping device 18, and the minimum range H that bare terminal end is 22 is littler than the thickness T of described rib 12.

And then, on a side arm 22, formed semicanal part 26.Semicanal part 26 is heaved from the outer surface of arm 22, and extends on the Width of arm 22.

Lid clamper 16 also has hook 28.This hook 28 is made of the line spring, and forms in the mode that bends this line spring by following order.At first, the bending of line spring is the U word shape, and then the both ends of line spring form as the insertion end 30 that bends in mutual opposed mode on coaxial line mutually.These insertion ends 30 have the size that can insert in the described semicanal part 26.Afterwards, the line spring of U font and then be L word shape for the right angle from its central authorities bending, thus form hook 28.

Consequently, hook 28 be included in cardinal extremity have described insertion end 30 a pair of hook pin 32, with the gib head 34 of the front end that is connected these hook pin 30.Gib head 34 constitutes roughly U font, and has the size in the U word groove 14 that can embed described lid 6.

When the laying of described cable class, prepare a plurality of described cable trough devices, the cell body 4 of these cable trough devices is along the circuit of hope and be configured to row.In addition, the two ends of cell body 4 form as the moon end and oedoeagus, and the cell body 4 of adjacency connects with these cloudy ends and the intermeshing mode of oedoeagus.

If the arrangement of cell body 4 is finished, then be built into the conduit that has only the top open.Afterwards, in conduit, lay the cable class of telecommunication cable or power cable etc.After the laying of cable class is finished, will cover 6 and be covered on each cell body 4, thereby conduit becomes tunnel-like completely.

Afterwards, as shown in Figure 3, the mode that clamping device 18 is clamped into the rib 12 of cell body 4 with the strain that is accompanied by its a pair of arm 22 24 of a pair of bare terminal ends is installed on the rib 12.At this moment, because the leading section of a pair of arm 22 forms as described bare terminal end 24,, clamping device 18 easily is installed on the rib 12 so can being pressed into towards cell body 4 ground by the outside from rib 12.

The installation of such clamping device 18 is carried out on the position corresponding with lid 6 U word groove 14 respectively.And hook 28 is installed on respectively on the clamping device 18 on the rib 12.Particularly, a pair of hook pin 32 of hook 28 is accompanied by strain and expands, and can respectively the insertion end 30 of each hook pin 32 be rotated in the end of the semicanal part 26 that is inserted into clamping device 18 freely with this.Afterwards, hook 28 covers 6 sideway swivels with insertion end 30 for middle mind-set, just is embedded into this gib head 34 and covers in 6 the U word groove 14.In addition, before being installed on clamping device 18 on the rib 12, hook 28 is installed on the clamping device 18 in advance also can.

Hook 28 retrain respectively cover 6 above-below direction with and the moving of length direction.Again, be installed on the hook 28 that covers on 6 the both side edges and link mutually, the mobile of 6 Width cover in constraint.Consequently, lid 6 utilizations are covered clamper 16 and are fixed in reliably on the cell body 4.

On the other hand, if hook 28 counter-rotatings, thereby remove the gib head 34 of hook 28 and engaging of U word groove 14, then can unload from cell body 4 covering 6.

The present invention is not limited to the cable trough device of above-mentioned first embodiment, can carry out all distortion, below all variation and other embodiment of explanation.In addition, when explanation variation and other embodiment,, mark identical Reference numeral, omit its explanation, its difference only is described performance and the parts of the device of first embodiment and the parts and the position of position identical functions.

Lid 6 can not have U word groove 14 but have a plurality of projections that can engage with the gib head 34 of hook 28.Particularly, these projections are along 14 configurations of U word groove.

Again, the sidewall 8 of cell body 4 does not have rib 12 but only has projection on the position corresponding to U word groove 14 and also can.

And then hook 28 can not have a pair of insertion end 30 but have the bar part of the cardinal extremity that links a pair of pin 32.

Fig. 4 is the hook 18 of expression first variation.

The hook 18 of Fig. 4 has the semicanal part on the boundary position between base portion 20 and the arm 22.The clamping device 18 of Fig. 4 can be installed on the rib 12 in the mode that its semicanal part 26 is positioned at the downside of rib 12.

Fig. 5 represents the clamping device 18 of second variation.

The clamping device 18 of Fig. 5 has semicanal part 26 at its base portion 20, and this semicanal part 26 is disposed on the centre line C L of 22 on arm.The clamping device 18 of Fig. 5 can with arm 22 arbitrarily be upside be installed on the rib 12, thereby its processing ease.

Fig. 6 represents the clamping device 18 of the 3rd variation.

18 of the clamping devices of Fig. 6 depart from this point different with the clamping device 18 of Fig. 5 in semicanal part 26 from centre line C L.Have following advantage under this situation: even the forming accuracy of cable trough 2 is poor, but as long as the clamping device 18 of Fig. 6 is installed on up and down on the rib 12 on the contrary, this clamping device 18 just can make gib head 34 embedding U word grooves 14.Therefore, the clamping device 18 of Fig. 6 correspondence for the dimensional accuracy of cable trough 2 is good.

Fig. 7 represents the clamping device 18 of the 4th variation.

The clamping device 18 of Fig. 7 has semicanal part 26 at two sides' arm 22 respectively.Under this situation, the clamping device 18 of the clamping device of Fig. 7 18 and Fig. 5 similarly, can with arm 22 arbitrarily be upside be installed on the rib 12.

Fig. 8 represents the clamping device 18 of the 5th variation.

The clamping device 18 of Fig. 8 replaces semicanal part 26 and has 3/4 tube portion 36.Because comparing with semicanal part 26, dwindles the opening of this 3/4 tube portion 36, so the insertion end 30 of hook 28 can not come off from 3/4 tube portion 36.That is, hook 28 always is installed in the clamping device 18 of Fig. 8.3/4 tube portion 36 also can be replaced with the semicanal part 26 of described first embodiment and variation.

If describe in detail about this point, then clamping device 18 and separately keeping of hook 28 perhaps is assembled in keeping under the state of the lid clamper 16 on the clamping device 18 at hook 28.Such keeping mode is corresponding to the kind of the laying operation of cable class or operating environment and select.

Fig. 9 represents the cable trough device of second embodiment.Under the situation of the cable trough device of Fig. 9, rib 12 is formed at the top of the sidewall 8 in the cell body 4, thereby the upper surface of the upper surface of rib 12 and sidewall 8 becomes same mutually.Again, the lid 6 of Fig. 9 replaces U word groove 14 and has L letter stencil 38.L letter stencil 38 is integrally formed in and covers 6 sidewall, and have from cover the outstanding diapire 40 of 6 sidewall, with and cover the sidewall 42 of 6 parallel sidewalls.Thereby, L letter stencil 38 and the collaborative fastening groove 44 that forms of the sidewall of lid 6, this fastening groove 44 extends along the sidewall of lid 6.

On the other hand, the clamping device 18 of lid clamper 16 does not have described tube portion 26,36 but has the part of heaving 46.This is heaved on the base portion 20 that part 46 is integrally formed in clamping device 18, and is formed with the rectangular channel 48 that extends on the Width of clamping device 18 in clamping device 18.

Again, the hook 50 of lid clamper 16 is different with described hook 28, does not have a pair of pin 32.That is, hook 50 has the gib head 34 of described U font, directly is formed at a pair of insertion end 30 on the two ends of this gib head 34.As shown in figure 10, insertion end 30 can move up and down in the rectangular channel 48 of clamping device 18 freely.

According to the cable trough device of second embodiment, after clamping device 18 was installed on the rib 12 of cell body 4, hook 50 was that the bridging part 34a of gib head 34 is received in the rectangular channel 48 that covers 6 sides, covered 6 with this and utilized and cover clamper 16 and fix on cell body 4.

Under this situation, gib head 34 and L letter stencil 38 are collaborative mutually, and constraint is along the length direction of lid 6 and moving of the lid on the above-below direction 6.Again, it is collaborative mutually to be disposed at the clamping device 18 that covers 6 both sides, and the mobile of lid 6 on 6 the Width cover in constraint.

On the other hand, remove to utilize under the situation of fixing of cover lid 6 that clamper 16 carries out, gib head 34 lifts at first upward, and described then bridging part 34a crosses L letter stencil 38 and rotates.

Because the insertion end 30 of gib head 34 moves freely in rectangular channel 48 up and down, so phase gib head 34 is removed easily for the engaging and the engaging of fastening groove 44.

In addition, the hook 50 of second embodiment can replace a pair of insertion end 30 and have the bar part at the two ends that connect gib head 34.

As described above described, in the cable trough device arbitrarily of first embodiment, first to the 5th variation and second embodiment, this device can be fixed in lid 6 on the cell body 4 reliably.As long as remove engaging, just can from cell body 4, easily unload covering 6 with respect to the gib head 34 of the U word groove 14 of lid 6 or rectangular channel 48 again.That is the cable trough arbitrarily 2 in the OD easily.

Because the use of described lid clamper 16 is not to the higher precision of forming requirements of rib 12, U word groove 14 and rectangular channel 48, so the shaping cost of cable trough 2 can not rise significantly.

And then under the situation of cable trough device of the present invention, the protrusion-shaped that is equivalent to rib 12 is formed on the sidewall 8 that the fastener that covers on 6 and be equivalent to U word groove 14 or groove 44 is formed at cell body 4 also can.

And then again, described tube portion 26 is formed on the arm 22 or base portion 20 of clamping device 18, but tube portion 26 is formed on arm 22 and base portion 20 these both sides and also can.

Claims

1. a cable trough device is characterized in that, comprising:

That constitute by plastics and include have diapire (10) and about sidewall (8) and at two ends and the cable trough (2) of the lid (6) of the upper surface open of the cell body of upper surface open (4) and inaccessible described cell body (4),

Fix the fixed mechanism of described lid (6) with respect to described cell body (4);

Described fixed mechanism includes:

Be formed at least 1 projection (12) on the side of the sidewall (8) of described cell body (4) and described lid (6),

Be arranged at least 1 fastener (14,44) on the opposing party of described sidewall (8) and described lid (6),

Stride and be located between described projection (12) and the described fastener (14,44) and described lid (6) can be fixed in lid clamper (16) on the described cell body (4) with discharging.

2. cable trough device as claimed in claim 1 is characterized in that,

Described lid clamper (16) comprising:

Can sandwich the clamping device (18) of described projection (12),

One side remains on that described clamping device (18) is gone up, the opposing party can hook and be fixed in hook (28,50) in the described fastener (14,44).

3. cable trough device as claimed in claim 2 is characterized in that,

Described projection is formed in the rib (12) that the described sidewall (8) of described cell body (4) is gone up and extended on the axis direction of described cell body (4).

4. cable trough device as claimed in claim 3 is characterized in that,

Described clamping device (18) is made of the leaf spring of U word shape, include base portion 20, from this base portion (20) extend and can clamp described rib (12) a pair of arm (22), with at least 1 carrier (26,46) that can admit described hook (28) cardinal extremity; Described carrier (26,46) has the two ends of opening.

5. cable trough device as claimed in claim 4 is characterized in that,

Described clamping device (18) also includes the leading section of described each arm of bending (22) and the bare terminal end (24) that forms, and the interval of these bare terminal ends (24) increases gradually towards the front end of described clamping device (18).

6. cable trough device as claimed in claim 4 is characterized in that,

Described carrier (26) is formed at least one side of the described base portion (20) of described clamping device (18) and described arm (22).

7. cable trough device as claimed in claim 4 is characterized in that,

Described hook (28) comprising: its base portion can be installed on the interior a pair of pin (32) of described carrier (26) of described clamping device (18) rotatably,

Have on the front end that is linked to described a pair of pin (32) respectively two ends and with the gib head (34) of the upwardly extending U font in side of described a pair of pin (32) quadrature,

Described fastener includes the groove (14) on the upper surface that is formed at described lid (6), and this groove (14) constitutes the U word shape that can embed described gib head (34).

8. cable trough device as claimed in claim 4 is characterized in that,

Described hook (50) includes the gib head (34) that its both ends move up and down the U font in the described carrier (46) that is installed on described clamping device (18) freely,

Described fastener includes from the outstanding L letter stencil (38) in the side of described lid (6), and this L letter stencil (38) is collaborative with the side of described lid (6), and formation can be taken in the groove (44) of described gib head (34).